Patent SG-11201804264Y-A (SG)
Title: Process for the epoxidation of propene to propylene oxide
Inventor: MADENJIAN EDWARD O
IPC: C07D301/12
Filed: 2016-12-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau 111111111111110 III OE III DID III II III RIII 11111111 (43) International Publication Date 22 June 2017 (22.06.2017) (10) International Publication Number WO 2017/103151 Al WIPO I PCT (51) International Patent Classification: C07D 301/12 (2006.01) (21) International Application Number: PCT/EP2016/081498 (22) International Filing Date: 16 December 2016 (16.12.2016) English English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art 21(3)) (25) Filing Language: (26) Publication Language: (30) Priority Data: 62/267,926 16 December 2015 (16.12.2015) US (71) Applicants: BASF SE [DE/DE]; Carl-Bosch-Str. 38, 67056 Ludwigshafen am Rhein (DE). DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center, Midland, 48674 (US). (72) Inventors: MADENJIAN, Edward O.; 110 Schrader Lane, Lake Jackson, Texas 7756 (US). MARSHALL, Kenric A.; 245 Rabbit Trail, Lake Jackson, Texas 7756 (US). (74) Agent: HERZOG FIESSER & PARTNER PAT- ENTANWALTE PARTG MBB; Altmann, Andreas, DudenstraBe 46, 68167 Mannheim (DE). W O 20 17 / 103 15 1 Al (54) Title: PROCESS FOR THE EPDXIDATION OF PROPENE TO PROPYLENE OXIDE (57) : A continuous process for the preparation of propylene oxide, comprising providing a liquid feed stream comprising propene, hydrogen peroxide, methanol, water, at least one dissolved potassium salt of hydroxyethylidenediphosphonic acid, and op - tionally propane; passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titani- um zeolite of structure type MFI, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, methanol, water, and the at least one dissolved potassium salt of hy- droxyethylidenediphosphonic acid, and optionally propane; removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, methanol, water, at least a portion of the at least one potassium salt of hydroxyethylidenediphos - phonic acid, and optionally propane.